KillerBulborb wrote i know i know, its the title update or the default mp file. i looked around the forums and found a couple of each(the title updates where title update 6) but none of them work.also, the default mp has to match the title update right?

I've had this problem before this is how i fixed it.

I extracted the code_post from the ISO to the desktop using wx360
Then placed the code_post on my usb
Then went into Xexmenu, Then into games folder > MW2
And then pasted the code_post into the MW2 folder.

This should work, if it doesn't I can send you my..
Title update, code_post and default_mp
And copy and paste them into the MW2 folder.

Hope this helped bro!

-MichaelJC94

if it wouldnt trouble you, ya i could use em.i had it working 2 days ago but i had to delete it beacause of memory issues, then it just didnt work when i put it back on.also, i use ftp if that has anything to do with it